XDA developers team member owl74 has find a method to unlock Galaxy Note II model N7100 and N7105. So, if you want to unlock your Android Galaxy Note II then go ahead with the guide below.
Warning: Continue with process to unlock Galaxy Note 2 N7100 / N7105 at your own risk.
Note: This guide also works to unlock Galaxy S III variants.
Unlock Galaxy Note 2 N7100 / N7105
Step-1
Dial *#197328640# from your mobile phone, as its written here
Step-2
Hidden menu wil appear now just navigate through “UMTS” > “Debug Screen” > “Phone Control” > “Network Lock” > “Options”
Step-3
In “Options” screen, select “Perso SHA256 OFF” and wait for 30-60 seconds
Step-4
Now to go back to “Network Lock” select “Options” and then choose “NW Lock NV Data INTIALLIZ” and again wait for 30-60 seconds and reboot your Galaxy Note II
Your Galaxy Note II is unlocked and you can use it with any SIM of any carrier service.
thanks it works on Galaxy Note II N7100.